The pro-abortion campaign includes a woman dressed in a bear costume attacking Palin and other pro-life women candidates, whom she has dubbed "mama grizzlies."
"Who hijacked the term 'feminist'?'" Palin asked in a comment on Twitter. "A cackle of radicals who want to crucify other women with whom they disagree on a singular issue."
"It's ironic and passe'," Palin added.